- Soft liners

Developed and tested at Skate One

Extra Small:

to help us reinvent the Marana outsole

The Era Pro is padded and equipped with a flexible vulcanized sole construction

Spitfire Formula Four Radial 99DU Skateboard Wheels Natural/Blue 56mm SIZE_XX-Large - Soft linersSpitfire Formula Four Radial 99 Duro 56mm wheels. Round edge design for control, speed and a responsive slide. Formulated for a harder faster ride Unmatched flatspot resistance Smooth anti stick slide More speed and control 100% True performance urethane In the labs and most importantly in the streets tested by Spitfire Team riders, Formula Four Performance Urethane lasted longer, withstood more abuse and performed superior to all other wheels.